--- title: "Connect Harvest and Mailjet - APIANT.ai" description: "When \"New Client\" fires in Harvest, your agent runs \"Add Contact to List\" in Mailjet, or \"New Contact\" in Mailjet to \"Create Contact\" in Harvest." canonical: "https://apiant.ai/connect/harvest-to-mailjet" --- # Connect Harvest and Mailjet When **New Client** fires in [Harvest](https://apiant.ai/connections/harvest), your agent runs **Add Contact to List** in [Mailjet](https://apiant.ai/connections/mailjet), or **New Contact** in Mailjet to **Create Contact** in Harvest. Describe the whole flow and it is built, tested on every scenario and kept running. Harvest **16** triggers Harvest **12** actions Mailjet **3** triggers Mailjet **16** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Harvest and Mailjet to do together? Give your AI client this address. `https://mcp.apiant.ai` One connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser. ### Set it up in your client ### Claude Code Run this in the directory you want to work in. `claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai` Start Claude Code there, approve the server, and sign in in the browser page it opens. [Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code) ### Claude, web and desktop Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Cursor Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Zed Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Codex and the ChatGPT desktop app Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Any other MCP client Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) Example flows ## What Harvest and Mailjet can do together ### From Harvest to Mailjet - When **New Client** in Harvest then **Add Contact to List** in Mailjet - When **New Contact** in Harvest then **Create Contact** in Mailjet ### From Mailjet to Harvest - When **New Contact** in Mailjet then **Create Contact** in Harvest - When **New Contact in List** in Mailjet then **Create Task** in Harvest Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships. Everything your agent can do with Harvest and Mailjet ## Triggers and actions 19 triggers · 28 actions - Trigger **Invoice Paid** Triggers when an invoice is fully paid. - Trigger **Invoice Sent** Triggers when an invoice is sent or marked as sent. - Trigger **New Client** Triggers when a new client is added. - Trigger **New Contact** Triggers when new contact is added. - Trigger **New Expense** Triggers when a new expense is added. - Trigger **New Invoice** Triggers when an invoice is created. - Trigger **New Project** Triggers when a project is created. - Trigger **New Task** Triggers when a new task is added. - Trigger **New Time Entry** Triggers when a time entry is created. - Trigger **New User** Triggers when a new User is added. - Trigger **New User Assignment** Triggers when a user is assigned to a project. - Trigger **Timer Started** Triggers when a timer is started. - Trigger **Timer Stopped** Triggers when a timer is stopped. - Trigger **Updated Client** Triggers when a client is updated. - Trigger **Updated Invoice** Triggers when an invoice is updated. - Trigger **Updated Time Entry** Triggers when a time entry is updated. - Action **Create Client** Creates a Client - Action **Create Contact** Creates a Contact - Action **Create Project** Creates a Project - Action **Create Task** Creates a Task and optionally assigns it to a project - Action **Create Time Entry** Creates a Time Entry with duration - Action **Create Time Entry (Start & End Times)** Creates a Time Entry with start and end times - Action **Find Client** Finds a client by name or ID - Action **Find Invoice** Finds an invoice by ID - Action **Find Project** Finds a project by name - Action **Find Task** Finds a task by name - Action **Start Timer** Creates and starts a timer for a given date - Action **Stop Timer** Stops any running timers - Trigger **New Contact** Polls for newly created contacts across the account. - Trigger **New Contact in List** Polls for contacts newly added to a specific contact list. - Trigger **New Contact List** Polls for newly created contact lists. - Action **Add Contact to List** Add (subscribe) a contact to a contact list via managecontact. - Action **Create Contact** Create a new contact. - Action **Create Contact List** Create a new contact list. - Action **Create Contact Property** Create a custom contact property (contactmetadata). - Action **Delete Contact List** Delete a contact list by ID. - Action **Get Contact** Retrieve a contact by ID or email address. - Action **Get Contact Data** Returns all the contact property values stored on a Mailjet contact. An error occurs if the contact is not found. - Action **Get Contact List** Retrieve a contact list by ID. - Action **Get Contacts in List** List contacts belonging to a specific contact list. - Action **Get Message** Retrieve a message by its ID. - Action **Get Statistics** Retrieve aggregated message/campaign statistics counters. - Action **List Contact Lists** List all contact lists. - Action **List Contacts** List contacts with optional pagination. - Action **Remove Contact from List** Unsubscribe/remove a contact from a contact list via managecontact. - Action **Send Email** Send a transactional or marketing email via the Send API v3.1. - Action **Update Contact** Update a contact's name or campaign-exclusion status. ## Each app on its own - [ **Harvest** Simple time tracking software and powerful reporting that helps your team thrive.](https://apiant.ai/connections/harvest) - [ **Mailjet** Mailjet is an all-in-one solution to send, track and deliver transactional, notification and marketing emails.](https://apiant.ai/connections/mailjet) Reviews ## What our customers say ## More from Harvest - [ **Harvest to Timeero** Timeero is a mileage and GPS time tracking app for mobile teams.](https://apiant.ai/connect/harvest-to-timeero) - [ **Harvest to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/harvest-to-hubspot) - [ **Harvest to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/harvest-to-salesforce) - [ **Harvest to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/harvest-to-slack) - [ **Harvest to Gmail** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/harvest-to-gmail) - [ **Harvest to Mailchimp** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/harvest-to-mailchimp) ## More into Mailjet - [ **Mailchimp to Mailjet** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/mailchimp-to-mailjet) - [ **ActiveCampaign to Mailjet** ActiveCampaign is a marketing automation, email marketing, and CRM platform.](https://apiant.ai/connect/activecampaign-to-mailjet) - [ **JIRA to Mailjet** Atlassian JIRA Cloud — issue tracking and project management.](https://apiant.ai/connect/jira-to-mailjet) - [ **Twilio to Mailjet** Cloud communications platform for sending SMS/MMS messages, making and managing voice calls, and looking up...](https://apiant.ai/connect/twilio-to-mailjet) - [ **Freshdesk to Mailjet** Freshdesk is a cloud-based customer support and helpdesk platform.](https://apiant.ai/connect/freshdesk-to-mailjet) - [ **Klaviyo to Mailjet** Klaviyo is a marketing automation platform for email and SMS.](https://apiant.ai/connect/klaviyo-to-mailjet) Questions ## Harvest and Mailjet, answered ### ### What can start an automation from Harvest? Any of Harvest's 16 triggers in the catalog, including New Client, New Contact, New Expense and New Invoice. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Mailjet when something happens in Harvest? Any of Mailjet's 16 actions, including Create Contact, Create Contact List, Create Contact Property and Send Email. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Mailjet to Harvest? Yes. When something happens in Mailjet, your agent can act in Harvest too. This page covers both directions: Mailjet's triggers and Harvest's actions are listed here as well. ### ### Do I have to build a connector for Harvest or Mailjet? No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running. ### ### Can my AI client use Harvest and Mailjet without building an automation? Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both. ### ### What happens when something fails? Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships. ### ### Is there a free plan? Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.